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Results tagged with reference-frames
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user 71514
A reference frame is a particular coordinate system chosen to represent physical entities. The notion is most often used in special and general relativity to denote particular coordinates chosen on the spacetime manifold.
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Does light in vacuum actually travel at the speed of light? [duplicate]
I know my question sounds like a joke (and I suppose on some level it is) but I'm confounded by the following:
As the thought experiment goes, if I'm in a spaceship flying rapidly the people on earth …
- 479
33
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Why isn't the center of the galaxy "younger" than the outer parts?
I understand that time is relative for all but as I understand it, time flows at a slower rate for objects that are either moving faster or objects that are near larger masses than for those that are …
- 479